EP0447470B1 - Ceramique de nitrure de silicium polyphasique a haute resistance et procede pour sa fabrication - Google Patents

Ceramique de nitrure de silicium polyphasique a haute resistance et procede pour sa fabrication Download PDF

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Publication number
EP0447470B1
EP0447470B1 EP90900811A EP90900811A EP0447470B1 EP 0447470 B1 EP0447470 B1 EP 0447470B1 EP 90900811 A EP90900811 A EP 90900811A EP 90900811 A EP90900811 A EP 90900811A EP 0447470 B1 EP0447470 B1 EP 0447470B1
Authority
EP
European Patent Office
Prior art keywords
silicon nitride
ceramic material
sintering
nitride ceramic
oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90900811A
Other languages
German (de)
English (en)
Other versions
EP0447470A1 (fr
Inventor
Marcellus Peuckert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
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Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0447470A1 publication Critical patent/EP0447470A1/fr
Application granted granted Critical
Publication of EP0447470B1 publication Critical patent/EP0447470B1/fr
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/584—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2206/00—Materials with ceramics, cermets, hard carbon or similar non-metallic hard materials as main constituents
    • F16C2206/40—Ceramics, e.g. carbides, nitrides, oxides, borides of a metal
    • F16C2206/58—Ceramics, e.g. carbides, nitrides, oxides, borides of a metal based on ceramic nitrides
    • F16C2206/60—Silicon nitride (Si3N4)l
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/23—Gas turbine engines
    • F16C2360/24—Turbochargers

Definitions

  • This green body was heated in 0.1 MPa N2 pressure to 1800 ° C in 1.5 h, isothermally sintered at 1800 ° C for 1 h and then cooled to room temperature for about 3 h.
  • 4.5 x 3.5 x 45 mm3 test sticks were sawn from the sintered ceramic body with a diamond saw, polished and tested for their strength at room temperature in a 4-point bending test in a 20/40 mm support. The results are summarized in the table.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Products (AREA)

Abstract

L'invention concerne une céramique de nitrure de silicium polyphasique à haute résistance, caractérisée en ce qu'elle renferme comme phase primaire au moins 80 % en poids de nitrure de silicium β cristallin en forme de barre, comme phase secondaire cristalline répartie de manière homogène entre les barres de nitrure de silicium, 1-5 % en poids de nitrure de titane cubique, le reste étant constitué de moins de 15 % en poids d'une phase vitreuse intergranulaire renfermant les éléments silicium, aluminium, cérium, oxygène et azote, plus éventuellement des traces de titane. Ces céramiques de nitrure de silicium sont fabriquées par frittage de mélanges pulvérulents de nitrure de silicium α, oxyde de cérium, oxyde d'aluminium et oxyde de titane et/ou de préférence titanate d'aluminium.

Claims (7)

  1. Procédé de fabrication d'une céramique de nitrure de silicium dans lequel on mélange une poudre de nitrure de silicium α avec un additif de frittage comprenant du titane et de l'aluminium à l'état oxydé, on donne au mélange la forme voulue d'un corps solide et on fritte celui-ci dans une atmosphère de gaz inerte, procédé caractérisé en ce que l'additif de frittage contient du titanate d'aluminium Al₂TiO₅.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on mélange une poudre cristalline de titanate d'aluminium dans une proportion d'au maximum 10 % en poids.
  3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que l'on effectue le mélange intense dans un broyeur attriteur ou à billes à fentes annulaires.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que l'on effectue la mise en forme ou moulage par un pressage isostatique à froid ou monoaxial, coulée en barbotine, moulage par injection ou coulage en bande.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que l'on effectue le frittage du corps vert entre 1750 et 2000°C dans une atmosphère de gaz inerte sous une pression d'azote de 0,1 à 200 MPa, en une durée d'une demi-heure à 5 heures.
  6. Emploi de la céramique de nitrure de silicium obtenue selon la revendication 1 comme pièce de moteurs à combustion, turbines à gaz, roulements à billes, buses ou céramiques de coupe.
  7. Emploi selon la revendication 6 comme rotors de turbocompresseurs à suralimentation, têtes de pistons, plaques de têtes de cylindres, têtes de soupapes, guides de soupapes, culbuteurs, bougies ou chambres d'allumage.
EP90900811A 1988-11-29 1989-11-18 Ceramique de nitrure de silicium polyphasique a haute resistance et procede pour sa fabrication Expired - Lifetime EP0447470B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3840171 1988-11-29
DE3840171A DE3840171A1 (de) 1988-11-29 1988-11-29 Mehrphasige siliciumnitridkeramik mit hoher festigkeit und verfahren zu ihrer herstellung
PCT/EP1989/001397 WO1990006293A1 (fr) 1988-11-29 1989-11-18 Ceramique de nitrure de silicium polyphasique a haute resistance et procede pour sa fabrication

Publications (2)

Publication Number Publication Date
EP0447470A1 EP0447470A1 (fr) 1991-09-25
EP0447470B1 true EP0447470B1 (fr) 1994-04-20

Family

ID=6368068

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90900811A Expired - Lifetime EP0447470B1 (fr) 1988-11-29 1989-11-18 Ceramique de nitrure de silicium polyphasique a haute resistance et procede pour sa fabrication

Country Status (5)

Country Link
EP (1) EP0447470B1 (fr)
JP (1) JP2840442B2 (fr)
KR (1) KR900701689A (fr)
DE (2) DE3840171A1 (fr)
WO (1) WO1990006293A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE513938C2 (sv) * 1996-07-19 2000-11-27 Sandvik Ab Skärverktygsmaterial av kiselnitrid
DE19704910C2 (de) * 1997-02-10 2000-07-06 Bayer Ag Flüssigphasengesinterter elektrisch leitfähiger und oxidationsresistenter keramischer Werkstoff, ein Verfahren zu seiner Herstellung und dessen Verwendung
JP4744704B2 (ja) * 2000-03-16 2011-08-10 株式会社東芝 耐摩耗性部材の製造方法
JP2001294479A (ja) * 2000-04-12 2001-10-23 Ngk Spark Plug Co Ltd ベアリング用セラミックボール及びそれを用いたセラミックボールベアリング
DE102004051971A1 (de) * 2004-10-25 2006-04-27 Inotec Gmbh & Co Holding Und Handels Kg Vorrichtung zum Herstellen oder Verarbeiten von Lebensmitteln
CN103990534B (zh) * 2014-05-20 2016-06-01 大连理工大学 一种等离子体辅助高能球磨制备AlN纳米粉末的方法
CN112645714B (zh) * 2020-12-28 2022-04-15 中材高新氮化物陶瓷有限公司 一种氮化硅陶瓷脱水元件及其制备方法和应用
CN113999017A (zh) * 2021-11-10 2022-02-01 衡阳凯新特种材料科技有限公司 陶瓷组合物、氮化硅陶瓷材料及其制备方法和陶瓷制品

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5888173A (ja) * 1981-11-19 1983-05-26 株式会社東芝 窒化珪素粉末組成物およびその焼結体
JPS6172684A (ja) * 1984-09-18 1986-04-14 株式会社東芝 高強度・高耐摩耗摺動部材およびその製造方法
JPS62153170A (ja) * 1985-12-25 1987-07-08 株式会社東芝 窒化ケイ素セラミツクス焼結体およびその製造方法
DE3617488A1 (de) * 1986-05-24 1987-11-26 Bayer Ag Sinterfaehige si(pfeil abwaerts)3(pfeil abwaerts)n(pfeil abwaerts)4(pfeil abwaerts)-pulver mit sinteradditiven und verfahren zu ihrer herstellung

Also Published As

Publication number Publication date
JP2840442B2 (ja) 1998-12-24
EP0447470A1 (fr) 1991-09-25
DE3840171A1 (de) 1990-05-31
KR900701689A (ko) 1990-12-04
JPH04502000A (ja) 1992-04-09
DE58907529D1 (de) 1994-05-26
WO1990006293A1 (fr) 1990-06-14

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